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#!/usr/bin/python
# vi: ts=4 expandtab
import json
import os
import tempfile
_DEF_PERMS = 0o644
def write_file(filename, content, mode=_DEF_PERMS, omode="wb"):
# open filename in mode 'omode', write content, set permissions to 'mode'
tf = None
try:
tf = tempfile.NamedTemporaryFile(dir=os.path.dirname(filename),
delete=False, mode=omode)
tf.write(content)
tf.close()
os.chmod(tf.name, mode)
os.rename(tf.name, filename)
except Exception as e:
if tf is not None:
os.unlink(tf.name)
raise e
def write_json(filename, data, mode=_DEF_PERMS):
# dump json representation of data to file filename.
return write_file(
filename, json.dumps(data, indent=1, sort_keys=True) + "\n",
omode="w", mode=mode)
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